Intermediate Transformation Structures in Laser Weld Joints of the X80 Steel

Intermediate transformation structures in the fusion zone of a weld joint of the X80 steel plates 8 mm thick are studied. It is shown that laser welding leads to the formation of predominantly bainite structures of various types and a small fraction of martensite in the fusion zone. The microhardnes...

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Bibliographic Details
Published inRussian physics journal Vol. 66; no. 7; pp. 721 - 730
Main Authors Kozlova, T. V., Gordienko, A. I., Malikov, A. G., Panyuhina, A. D.
Format Journal Article
LanguageEnglish
Published Cham Springer International Publishing 01.11.2023
Springer Nature B.V
Subjects
Bainite
Condensed Matter Physics
Hadrons
Heavy Ions
High strength low alloy steels
Laser beam welding
Lasers
Martensite
Mathematical and Computational Physics
Microhardness
Nuclear Physics
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Steel plates
Theoretical
Welded joints
bainite
intermediate transformation structures
low-carbon steel
scanning tunnel microscopy
microhardness
laser welding
acicular ferrite
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Summary:Intermediate transformation structures in the fusion zone of a weld joint of the X80 steel plates 8 mm thick are studied. It is shown that laser welding leads to the formation of predominantly bainite structures of various types and a small fraction of martensite in the fusion zone. The microhardness measurements in different structural phases have been carried out. The fine bainite and martensite structures have been analyzed using scanning tunnel microscopy.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-023-02998-x